Willis, Dave. <br/><br/>
Collins Cobuild Student's Grammar / 
Practice material Dave Willis, editor-in-chief John Sinclair  
 - London :  Collins,  1993. 
 - 240 p. 
<br/><br/><label>ISBN: </label>0033705641 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Grammar
<br/><br/><label>LC Class. No.: </label>PE1112